Draft-rigging backstop



Feb. 20, 1923..

D. S. BARROWS DRAFT RIGGING BACKSTOP Filed Oct. 21, 1921 5 sheets-sheet, l

. 1,446,027 D. s. BARROWS DRAFT RIGGING BACKSTOP Filed Oct. 21, 1921 5 sheets-sheet 2 NW" f m y 7' V] 7% Feb. 20, 1923.

D. 5. BARRQWS DRAFT RIGGING BACKSTOP Filed Oct. 21, 1921 d z sa /-9 /7 T I l 5 sheets-sheet 5 III 22 Patented Feb. 20, 1923.

DONALD s. BARROWS, or noonns'rna, TON COMPANY, OF NEW YORK,

N. Y., A CORPORATION OF NEW YORK, ASSIGNOR TO THE TrH. SYMING- DELAWARE.

DRAFT-RIGGING BACKSI'OP.

Application filed October 21, 1921.

To all whom it may concern-x Be it known that I, DONALD S. BARROWS, a citizen of the United States, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Draft-R1 ging Backstops; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to WhlCh it appertains to make and use the same.

y invention relates to draft rigglng backstops which are secured to spacedvsills of a railway car to afford means for transmitting to the car underframe the buffing shocks to which the draft rigging mechanism is subjected when in service.

The principal ob ect of the invention is to provide a backstop of great strength which may be securely attached to the car sills with a minimum expenditure of labor, which is comparatively light in weight, and in which the liability of the occurrence of manufacturing defects is reduced.

Generally stated, the principal feature of the invention resides in constructing a backstop with side walls which are united at their forward ends by an end .wall forming an abutment for a movable part of the draft rigging. side walls by rearwardly extending upwardly divergent webs.

.A further feature of the invention consists in forming the backstop with side walls which are united by a forward end wall adapted to constitute an abutment for a movable part of the dra rigging, and in connecting the said end and side walls by longitudinally extending upwardly divergent webs which themselves are united to upwardly extending webs or flanges integrally connected to the said end wall.

Another feature of the invention consists in providing 'a backstop with side walls, a forward end wall united to said side Walls, and a centrally disposed horizontally extending hollow column connected to said end wall and extending rearwardly therefrom. 7

Other features of the ln particular details of characteristic relations of will hereinafter appear.

invention residing construction and structural parts In the drawings illustrating the inventior tied and in uniting said end wall to the that any other Serial No. 509,346.

the scope whereof will be pointed out in the claims,

Figure 1 is a plan viewof a backstop embody ing the invention showing its assembled relation to a portion of the underframing of a car and to the rear end of a draft rigging mechanism.

Figure 2 is a horizontal section of the construction shown in F ig. 1, the view being taken on the line 22, Fig. 4, and the draft rigging being in plan. s

Figure 3 is a sectional View on the line 33, Fig. 1,the draft rigging being omitted.

Figure 4 is a transverse section on the line H, Fig. 3.

Figure 5 is a rear end elevation of the construction shown in Fig.1.

Figure 6 is a plan view of a modified form of backstop embodying the invention.

Figure, 7 is a vertical sectional view of the construction shown in Fig. 6, taken at one side of the central vertical web.

Figure 8 'is a transverse section on the line 88, Fig. 7.

Figure 9'is a rear elevation of the modified form of backstop shown in Figs; 6, 7 and 8.

Figure 10 is a detail plan view of a modiformof construction which may be employed for the forward end of the backstop.

Figure 11 isa sectional View on the line 11-11, Fig. 10.

The 1 backstop is secured between the spaced center sills 1 of the carunderframe. The sills illustrated are of a well known composite form, but it is to be understood form of sills may be employed" if desired.- The draft rigging mechanism illustrated in the drawings and gen-- erally designated by the reference numeral 2, is of the well known type involving a horizontal yoke 3 and a rear follower 4, but this particulardraft rig ing is intended to serve merely as an illustration and is not disclosed with the intention of limiting the invention to use in conjunction therewith.

The backstop is provided with parallel side walls 5 Which are adapted to-be secured to the respectively adjacent sills 1- of the car, the attachment being preferably made by rivets 6 that may be arranged in three vertically spaced rows extendin longitudinallyof the backstop. C

At its forward end the backstop is provided with a vertical end "wall 7 which in:

tegrally unites the side walls 5 and is adapted to form an abutment'for a movable part of the draft rigging, said movable part in the case illustrated in the drawings being the draft yoke 8. Projecting rearwardly from the forward end wall 7 longitudinally of the backstop are upwardly divergent inclined webs 8 Which preferably are united along the center line of the backstop and may be upwardly curved so as to afford increased space facilitating the driving of the middle row of rivets 6 at the forward end of the structure. The forward end wall 7 and the upwardly divergent inclined webs 8 may also be integrally united by webs 9 which extend upwardly from. said webs 8 the backstop and be of and may converge toward the upper part of curved form if desired, the said webs 8 and 9 constituting in effect a'centrally disposed horizontally extendinghollow column forreceiving longitudinal thrusts delivered to the end wall 7. To afford further strength for resisting longitudinal forces, the backstop may also be provided with a longitudinally extending vertical web 10 which is united to the end wall 7 passes between the upwardly divergent webs 8 and is connected to the latter along their junction line.

It is preferred to form the backstop with transverse webs 11 extending inwardly from the side walls 5 toward the king bolt opening 12 with which devices of this character are customarily provided. These transverse webs 11 are united to the transversely inclined webs 8 and 9 as wellas to the vertical longitudinal web 10. A transversely extending horizontal'web 13, which is united to the webs 11 and to the vertical longitudinal web 10, may also be advantageously employed for transversely connecting the side walls 5 of the backstop.

The rear portion of the backstop may be conveniently provided intermediate of its height with a plurality of spaced horizontal webs 14 disposed upon opposite sides of the central row of rivets 6 in horizontal alinement with the forward end wall 7 and the webs 8 and 9 forming the hollow column by which said end wall is braced. These horizontal webs 14 extend between and connect the side walls 5v of the casting. The side .walls are also preferably connected along the lower edges at their rear ends by a horizontally'extending web 15 which is united to a centrally. disposed vertical flange 16 connecting the webs 14: to the transversely extending webs 11. The lower horizontal web 15, as shown, may extend forwardly so as to unite wih the vertical longitudinal web 10 and form a transverse connection for the side walls 5 somewhat in advance of the king bolt opening 12.

Inthe modified embodiment of the inventlonlllustrated 1n Figs. 6 to 9, inclusive, the

e ea? side walls 17 of the backstop are united by a forward end wall 18'which, like the end wall 7 is adapted to form an abutment for a movable part of the draft rigging. As in the case of the construction heretofore described, the side walls 17 and end wall 18 are integrally united by upwardly divergent, preferably curved, webs 19 which extend rearwardly from said end wall to the transversely extending vertical webs 20 projecting inwardly from the side walls toward the king bolt opening 21. The upwardly extending webs 22 united to the end wall 18 and to the said divergent webs 19 in this in stance do not converge upwardly, as do the corresponding webs 9 embodied in the form of my invention illustrated in the principal figures of the drawing but are disposed in longitudinally extending vertical planes. They may-be connected at their rear ends to the transverse webs 20 and to the horizontal web 23 tying the upper edges of the side walls 17 together adjacent the king bolt opening.

The modified form of the front end of the backstop illustrated in Figs. 10 and 11 involves side walls 24 adapted to be received between the sills of the car and an end wall 25 for engaging a movable part of the draft rigging. The side walls 24 and the end wall 25 are integrally united by longitudinally extending upwardly divergent webs 26 and the latter are also united to the said end wall 1. A draft rigging backstop comprisingside walls adapted to be secured to spaced car sills, a forward end wall united to said side Walls and adapted to form an abutment for a movable part of the draft rigging, and rearwardly extending upwardly divergent webs uniting the forward end wall to said side walls. I

2. A draft rigging backstop comprising side walls adapted to be secured to spaced car-sills, a forward end wall united to said side walls and adapted to form an abutment for a movable part of the draft rigging, and longitudinally extending upwardly divergent webs uniting said forward end wall to said side walls. i

3. A draft rigging. backstop comprising side walls adapted to be secured to spaced car sills a forward endwall united to said side walls and adapted to form an abutment for a movablepart-of the draft rigging, and longitudinally disposed divergent inclined webs extending on opposite sides of the longitudinal axis of the backstop and uniting saidforward end wall to said side walls at points intermediate the edges thereof.

4'. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall united to said side walls and adapted to form an abutment for a movable part of the draft rigging, and a centrally disposed horizontally extending hollow column connected to said forward end wall and extending rearwardly therefrom.

5. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall uniting said side walls and adapted to form an abutment for a movable part of the draft rigging, and vertically curved Webs uniting said forward end wall to said side walls atpoints intermediate the edges thereof.

6. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward end wall uniting said side walls and adapted to form an abutment for a movable part of the draft rigging, and longitudinally extending transversely upwardly inclined webs united to said forward end wall and extending. rearwardly therefrom.

7. A draft rigging. backstop comprising side walls adapted to be securedto spaced car s1lls,a forward end wall uniting said'side walls and adapted to form an abutment for a movable part of the draft rigging, a king-bolt opening, transverse webs respectively united to said side walls and extending toward said king bolt opening, and upwardly inclined webs uniting said forward end wall to said side walls and transverse webs.

8. A draft rigging backstop comprising side walls adapted to be secured to=spaced car sills, a forward end wall uniting said side walls and adapted to form an-abutment for a movable part of the draft rigging, longitudinally extending upwardly divergent webs united to said forward end wall and,to said side walls adjacent said end Wall, and upwardly extending webs united to said end wall and to said divergent webs.

9. A draft rigging backstop comprising side walls adapted to be secured to spaced' a forward end wall .uniting said car sills,

side walls and adapted to-form an abutment for a movable part of the gitudinally extending webs united to said forward end wall and to said side walls, and upwardly convergent webs united to said end wall and to said divergent webs.

' 10. A draft rigging backstop comprising side walls adapted to be, secured to spaced draft rigging, lon upwardly divergent car sills, a forwardend wall uniting said 7 side walls and adapted to form an abutment for a movable part of the draft rigging, upwardly divergent webs uniting said end wall and said side walls, and a longitudinally extending vertical web united to said forward end wall and extending rearwardly theredivergent webs.

from between said 11. A draft rigging backstop comprising side walls adapted to be secured to spaced car sills, a forward endwall uniting said side walls and adapted to form an abutment for a movable part of the draft rigging, 1ongitudinally ,extending upwardly divergent webs united to said forward end wall and to said side walls, upwardly convergent webs united to said end. wall and to said divergent webs, and a longitudinally extending web united to said end wall and projecting into the space between said convergent webs and said divergent webs.

12. A draft rigging backstop comprising side walls car sills, a forward end wall uniting said side walls and adapted to form an abutment for a movable part of the draft rigging, a plurality of horizontally disposed spaced webs connecting said side. walls, a vertical web in the longitudinal axis of the backstop, webs extending inwardly from said side -walls. toward said vertical web and united side walls and adapted to form an abutment for'a movable part of the draft rigging, a.

centrally disposed hollow column united at its forward end to said end wall and extending rearwardly therefrom, said column being open interiorly from end to end, and webs uniting said column to said side walls.

In testimony whereof I aflixv my signature.

DONALD s. BA RoWs.

adapted to be secured to spaced 

